package com.web.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

import com.web.servlet.dao.DBConnect;

public class FeedbackServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor of the object.
	 */
	public FeedbackServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}
	
	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		super.service(req, resp);
		
	}
	
	@Override
	public void service(ServletRequest req, ServletResponse res)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		super.service(req, res);
		
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		response.setContentType("text/plain");
		response.setCharacterEncoding("utf-8");
		
		PrintWriter out = response.getWriter();
		
		String userId =request.getParameter("userId");
		
		String content =request.getParameter("content");
		content = new String(content.getBytes("iso-8859-1"), "utf-8");
		
	    
	    if(userId!=null && content!=null)
	    {
    		boolean bIsSuccess =DBConnect.insertFeedBacK(userId,content);
    
    		Document document = DocumentHelper.createDocument();
	    	Element rootElement = document.addElement("root");
	    	if (bIsSuccess)
	    	{
	    		rootElement.addAttribute("st", "success");
	    	}
	    	else
	    	{
	    		rootElement.addAttribute("st", "fail");
	    	}
	    	
	    	out.print(document.asXML());
	
	    	out.flush();
	    	out.close();
	    }
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
